You can now download sets of images from events at the dimensions of your choice.  So if you don’t need the full-sized files you can specify the size you want for a smaller, faster download.

To take advantage of this feature, check off the images you want from a given event as you normally would but instead of hitting the download button, use the “More Actions…” drop down menu and select the “Download smaller” option.  In the dialog box that pops up, select the maximum size for the images you want, and click the “Download Resized” button.